An imaging polarimeter (IMPOL) for multi-wavelength observations
Citations Over Time
Abstract
Taking advantage of the advances in array detector technology, an imaging polarimeter (IMPOL) has been constructed for measuring linear polarization in the wavelength band from 400-800 nm. It makes use of a Wollaston prism as the analyzer to measure simultaneously the two orthogonal polarization components that define a Stoke's parameter. An achromatic half-wave plate is used to rotate the plane of polarization with respect to the axis of the analyzer so that the second Stoke's parameter also can be determined. With a field of view corresponding to about for a 20/D 1.2 m, f/13 telescope, a sensitive, liquid- cooled CCD camera as the detector and a built-in acquisition and guidance unit, the instrument can be used for studying stellar fields or extended objects with an angular resolution of . The instrumental polarization is less than 0.05% and the accuracies of measurement are primarily limited by photon noise for typical observations.
Related Papers
- → Triple-band linear and circular reflective polarizer based on E-shaped metamaterial(2014)28 cited
- → Achromatic phase shifting by a rotating polarizer(1998)59 cited
- → A new achromatic reflective STN‐LCD with one polarizer and one retardation film(1995)11 cited
- → Achromatic circular polarizer in the 482–535 nm range based on polypropylene films(2012)1 cited
- 51.2: Achromatic Wide-Angle CLC-Based Broadband Polarizer(51: LC POLARIZERS)(2.発表内容報告)(1999)